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EE audio help needed
I've been arguing with the Toyota dealer over the crappy radio reception in our new Highlander. This unit has the worst reception of any vehicle we've driven in the last 10 years and the dealer says it's normal. Many channels that we have had no trouble pulling in with Fords, Dodges, Jeeps and Subaru's in our driveway fade out within 10 miles of the house in the Highlander. Even the Toyota Tacoma loaner they gave me had no trouble pulling these stations in. Others on Edmunds.com have also complained about the crappy reception in the Highlander. Anyway, they faxed me the specs for the factory radio. Can anyone tell me if these tuner specs are good? The factory specs list an AM sensitivity of 34 dBu or less and FM sensitivity of 14 dBu or less. Then it has something called "Electronic Tuning Sensitivity Distant" for AM of 40 +/- 5 dBu and FM of 24 +/- 6 dBu.
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EE audio help needed
The small amount of research I've done indicates that lower sensitivity numbers are better, but the aftermarket units all seem to be rated in db F. How does that compare to db u? Many of the aftermarket numbers are less than 12 db F.
I'll look into an antenna booster and see if there's some sort of adjustment on the radio. Thanks for the tips!
We'd really like to keep the oem radio since it looks good and is easy to operate with big, well laid out controls. Plus it has cassette and CD built in. But if we have to go aftermarket we will.
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Thanks Michael for your in-depth analysis. It makes a lot of sense now and explains why the Toyota has such poor reception. I agree that if an antenna booster solves the problem that's the way to go.
I stopped by an audio place today to look at car stereos. Boy they sure are ugly these days. Most of them have huge blue flourescent or color lcd displays that visually show some sort of dynamic reverb show. Who wants to watch a moving radio display? All the aftermarket manufacturers have adapters to fit 1, 1.5 or 2 DIN enclosures. They really are sophisticated, the dealer had a computer program where you select a radio and your car model and the program would display what it would look like in the dash with the required adapter.
Our highlander has the base model radio and not a lot of in-cabin electronics (no navigation system, no dvd, etc) so hopefully the radio doesn't do anything but play audio.
Thanks for all the good info fellas!
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Still working on the Highlander radio problem. It's been delayed because three weeks after buying it my wife backed it into a parking garage concrete wall and it's been in the body shop. Yeesh. We picked it up yesterday and I have an antenna amplifier to try out this weekend. I need to make sure the antenna is properly grounded as well.
ncrunch, when we built our house I prewired in-wall and ceiling speakers in all the rooms and on the deck. We have a Xantech distribution amp that can take six sources and route them to 10 sets of speakers. Unfortunately I haven't gotten around to hooking it all up 
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